Sequential Circuits Prophet T8

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"Certainly one of the Kings of analogue poly-synths, up there with Yamaha CS-80, Elka Synthex, etc.

Final 3.8 Main ROM Firmware & MIDI Rev. Serial Number 5** (for the buyer only), so one of the last produced.

It is estimated there were only around 600 of these T-8’s made in total so certainly a very rare synth.

This T-8 is Ex Sequential Circuits European factory @ Mijdrecht in Holland initially, on release around 1984/5...

It has worked fine for me in that time but the following work has been done as refurbishment for this sale:

Calibrated/re-tuned to factory specification.

Tunes in less than 5-10 seconds now after 20 minutes warm up period.

PSU capacitors replaced with long life Phillips ones & checked the power rails to be within specification.

5 front panel tact switches replaced & all 7 rear jack sockets replaced.

New Z80B keyboard CPU fitted. 2 x new Common RAM fitted. 5 x new scratchpad RAM fitted.

All as a precaution for long term health & reliability.

(Receipts here for all replaced parts.)

Key bed and all keys individually removed & cleaned. (Pictures to prove.)

Key bed even over full span of 6 1/2 octaves. Spare spacers in Wine Country kit should you need.

After touch works 100% and always has in both Poly & Mono modes. (8 channels of after touch in mono mode.)
Front panel removed & cleaned, as well as all pots.

I replaced three key return hammer/spring/flanges when I bought it & still have two new spares.
Factory programs have been reloaded for this sale and as an excellent starting point for learning the strengths of this machine.

This work was carried out by an ex-BBC engineer/technician with 30 years experience of servicing analogue & electronics gear.

In addition to the work done as refurbishment, this T-8 comes complete with EVERY possible accessory

including some that you wouldn’t find with any stock T-8’s, as follows:

1. Original foot pedal.

2. Original bound user manual & multiple MIDI revision update manuals.

3. Original preliminary service data complete with RARE full original schematics.

4. Original technical service manual with tuning procedures.

5. 128 Factory programs cassette from Wine Country and also as sysex files on CD.

Note: This latest Rev T-8 supports MIDI program dump/load to/from PC via sysex.

(No need to bother with cassette loading.)

6. Wine Country long term survival kit including CEM3360 dual VCA.

7. Wine Country the diagnostics/service ROM & manual.

8. 1 page promotional colour ad from Sequential on release (from a UK published magazine.)

9. Custom made flight case made by Adam Hall, UK but with an Amptown, Hamburg sticker on it.

Weighs 48 Kg in flight case, less all accessories which will be in another box.

10. Mains voltage regulator for 110 or 220V output.

These extras alone would be worth £500-£1000."